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这篇文章主要介绍php如何去除重复数组值，文中介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们一定要看完！
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php去除重复数组值的方法：首先打开相应的PHP代码文件；然后通过“array_unique($ordernum);”去掉重复的字符串；最后输出去重后的数组即可。
php去除数组中重复值,并返回结果!
$data = db('order')->field('ordernum')->where(array('user_id' => $user_id))->select();查询的数组格式
array(16) {
[0] => array(1) {
["ordernum"] => string(18) "190415165656156213"
}
[1] => array(1) {
["ordernum"] => string(18) "190415165656156213"
}
[2] => array(1) {
["ordernum"] => string(18) "190415165656156213"
}
[3] => array(1) {
["ordernum"] => string(18) "190415170056183687"
}
[4] => array(1) {
["ordernum"] => string(18) "190415170056183687"
}
[5] => array(1) {
["ordernum"] => string(18) "190415170056183687"
}
[6] => array(1) {
["ordernum"] => string(18) "190415170345120966"
}
[7] => array(1) {
["ordernum"] => string(18) "190415170345120966"
}
[8] => array(1) {
["ordernum"] => string(18) "190415170345120966"
}
[9] => array(1) {
["ordernum"] => string(18) "190416174929158053"
}
[10] => array(1) {
["ordernum"] => string(18) "190416174929158053"
}
[11] => array(1) {
["ordernum"] => string(18) "190416194457158437"
}
[12] => array(1) {
["ordernum"] => string(18) "190416194457158437"
}
[13] => array(1) {
["ordernum"] => string(18) "190416195027154990"
}
[14] => array(1) {
["ordernum"] => string(18) "190416195027154990"
}
[15] => array(1) {
["ordernum"] => string(18) "190417124518178758"
}
}
foreach ($data as $k => $v) {
$ordernum[] = $v['ordernum'];
}ordernum数组格式
array(16) {
[0] => string(18) "190415165656156213"
[1] => string(18) "190415165656156213"
[2] => string(18) "190415165656156213"
[3] => string(18) "190415170056183687"
[4] => string(18) "190415170056183687"
[5] => string(18) "190415170056183687"
[6] => string(18) "190415170345120966"
[7] => string(18) "190415170345120966"
[8] => string(18) "190415170345120966"
[9] => string(18) "190416174929158053"
[10] => string(18) "190416174929158053"
[11] => string(18) "190416194457158437"
[12] => string(18) "190416194457158437"
[13] => string(18) "190416195027154990"
[14] => string(18) "190416195027154990"
[15] => string(18) "190417124518178758"
}
$ordernum = array_unique($ordernum); //去掉重复的字符串去重后ordernum 数组格式
array(7) {
[0] => string(18) "190415165656156213"
[3] => string(18) "190415170056183687"
[6] => string(18) "190415170345120966"
[9] => string(18) "190416174929158053"
[11] => string(18) "190416194457158437"
[13] => string(18) "190416195027154990"
[15] => string(18) "190417124518178758"
}
foreach ($ordernum as $k => $v) {
$new_ordernum[] = $v; //拆分后的重组
}产生的新数组格式
array(7) {
[0] => string(18) "190415165656156213"
[1] => string(18) "190415170056183687"
[2] => string(18) "190415170345120966"
[3] => string(18) "190416174929158053"
[4] => string(18) "190416194457158437"
[5] => string(18) "190416195027154990"
[6] => string(18) "190417124518178758"
}以上是“php如何去除重复数组值”这篇文章的所有内容，感谢各位的阅读！希望分享的内容对大家有帮助，更多相关知识，欢迎关注创新互联行业资讯频道！